28618275456 has 512 divisors, whose sum is σ = 97293312000. Its totient is φ = 8221409280.

The previous prime is 28618275449. The next prime is 28618275457. The reversal of 28618275456 is 65457281682.

28618275456 is a `hidden beast` number, since 2 + 8 + 6 + 182 + 7 + 5 + 456 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (28618275457) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34604515 + ... + 34605341.

It is an arithmetic number, because the mean of its divisors is an integer number (190026000).

Almost surely, 2^28618275456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28618275456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48646656000).

28618275456 is an abundant number, since it is smaller than the sum of its proper divisors (68675036544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28618275456 is a wasteful number, since it uses less digits than its factorization.

28618275456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 899 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 28618275456 in words is "twenty-eight billion, six hundred eighteen million, two hundred seventy-five thousand, four hundred fifty-six".